Atom
Which subatomic particle has negative charge
electron
Which two charges will display attraction?
negative and positive charge
How do you turn off an electromagnet?
disconnect the wire from the battery
what is a force?
a push or pull
This is the equation for which of Newton's law
F=MA
Newton's 2nd law
Which subatomic particle has a neutral charge?
Neutron
If a north pole and a north pole are moved close together what will the pole do to each other?
repel
what do you call the relationship between electricity and magnetism?
electromagnetism
a force that is applied without touching another object
non contact force
For every action there is an equal and opposite reaction, is which Newton's Law?
Newton's 3rd Law
Which subatomic particle has a positive charge and also tells the atomic number of an element?
proton
As the distance decrease the strength between the forces will ___________.
increase
what device transfers mechanical energy to electrical energy?
generator
If the mass of an object increases, what does the force have to do to in order to move the object.
increase
on a distance time graph, what does a horizontal straight line represent
object at rest
What is the overall charge of an atom's nucleus?
positive
where is the magnetic field on a magnet the strongest?
poles
give one way to increase the strength of an electromagnet
increase coils, increase voltage, use iron core, use a thicker wire
two dogs pull on a rope. one dog pulls with a force of 5N to the left and the other pulls with a force of 3N to the right. What is the net force?
2N left
on a speed vs time graph, what does a horizontal straight line represents?
constant speed
what is the overall charge of an atom?
neutral
In the electric and magnetic field, what charge and pole does the field run out?
positive charge and north charge
A step down transformer has a voltage of 400 V through the primary coil and 200 v through the secondary coil. there are 5 loops in the secondary coil. How many loops in the primary coil?
10 loops
List the 3 non-contact forces
gravity, electrical, and magnetic
which example best represents Newton's 3rd law? Your foot pushing on the ground or car driving up hill
foot pushing on the ground